Nong-O Gaiyanghadao height - How tall is Nong-O Gaiyanghadao?

After Alaverdi Ramazanov won the ONE Kickboxing Bantamweight World Championship at ONE Championship: Edge Of Greatness, he expressed interest in defending his title against Nong-O. A title fight between the two has been scheduled for ONE Championship: Heart of Heroes on March 20, 2020.

On February 16, 2019, Nong-O defeated Han Zihao by unanimous decision to become the inaugural ONE Muay Thai Bantamweight World Champion at ONE Championship: Clash of Legends in Bangkok.

On May 10, 2019, he would defend his ONE Muay Thai Bantamweight World Championship against Hiroaki Suzuki at ONE Championship: Warriors of Light, winning by unanimous decision and retaining his title.

He made his second title defense against Brice Delval at ONE Championship: Immortal Triumph in Ho Chi Minh City on September 6, 2019, featuring ONE Championship's first event in Vietnam and first all-striking card, where he successfully retained the ONE Muay Thai Bantamweight World Championship via a closely contested split decision win.

Nong-O is scheduled to make his third title defense against Saemapetch Fairtex at ONE Championship: Edge Of Greatness on November 22, 2019. Nong-O successfully defended his ONE Muay Thai Bantamweight World Championship against Saemapetch Fairtex, winning by fourth-round knockout in a fight where he knocked down Saemapetch twice in the second round.

After taking a hiatus from Muay Thai in 2015, he became a Muay Thai instructor at Evolve MMA in Singapore. He would then make his comeback at ONE Championship: Heroes of Honor on April 20, 2018. He is considered to be one of the best pound for pound Muay Thai fighters in the world. He is a seven-division Muay Thai champion, having won 2 Thailand titles, 1 Rajadamnern Stadium title, 3 Lumpinee Stadium titles, and 1 ONE Championship title.

Following a competitive hiatus in which he moved to Singapore to coach at Evolve, Nong-O returned in 2018 when ONE Championship unveiled their new striking format: the ONE Super Series. Nong-O debuted in April 20 at ONE Championship: Heroes of Honor and defeated Fabio Pinca via unanimous decision. He returned to his Thai homeland in October at ONE Championship: Kingdom of Heroes, and defeated Mehdi Zatout via unanimous decision.

He TKO'd Mongkolchai Phetsupaphan in five on February 7, 2013.

He beat Singdam Kiatmuu9 on points to win the Lumpinee lightweight belt on June 7, 2013.

He faced Petboonchu F.A. Group for the seventh time on October 12, 2012 at Rajadamnern Stadium.

On January 19, 2011, Nong-O Sit Or was named 2010 boxer of the year at the Society of Friends of Sportswriters Awards Night in Bangkok.

On January 17, 2010, Nong-O participated in the tournament "Yod Muay Champions Cup 60kg" in Japan. He fought against Sindam Kietmukao in the first match. After five rounds, the bout was declared a draw. Nong-O lost by the split decision after extra round (6th round). On December 9, he challenged Saenchai's titles of Lumpinee Stadium and WMC, but he lost by decision.

On January 18, 2009, Nong-O fought against Tomoaki Suehiro at Yoyogi National Gymnasium for the Muay Thai event "Muay Lok". He won by TKO when the referee stopped the contest after he knocked Suehiro down twice with a right hook and left hook during first round. After the contest, he was given a bunch of flowers by Shinya Aoki. Nong-O was going to fight against Shunta Itō in the beginning, but he was replaced because his legs had not healed enough.

On November 8, 2009, he fought against Trijak Sitjomtrai in Japan. Trijak was the current champion at featherweight sanctioned by the Professional Boxing Association of Thailand, but Nong-O won by majority decision(2-0) after five rounds.

On August 3, 2008, Nong-O fought against Kōji Okuyama at Keio Plaza hotel in Hachiōji, Tokyo, and he won by KO with left elbow strike during 3rd round. December 9, 2008, he fought against Wutidet Lukprabath at Lumpinee Stadium in the memorial event of Lumpinee Stadium establishment. He won by decision after five rounds.

Nong-O Gaiyanghadao (born November 10, 1986), formerly known as Nong-O Sit Or and Nong-O Gaiyanghadaogym, is a Thai Muay Thai kickboxer currently signed to ONE Championship and is the reigning ONE Muay Thai Bantamweight World Champion.